Television and radio antenna mast roof mounts and lead-in wire entrance insulators



- 7 June 11, 1957 LE. FRITZING RAD TELEVISION AND LEAD-IN WIRE ENTRANCEINSULATORS' Filed Sept. 22, 1953 I0 ANTENNA MA ROOF MOUNTS AND INVENTOR:

United States Patent TELEVISION AND RADIO ANTENNA MAST ROOF MOUNTS ANDLEAD-IN WIRE ENTRANCE 1N- SULATORS Lloyd E. Fritzinger, Tarzana, Calif.

Application September 22, 1953, Serial No. 381,581

2 Claims. (Cl. 174-451) My invention relates to a device or devices 'forsupporting a television and/or radio antenna mast and antenna (with orwithout the use of guy Wires) on the roof of a house or other buildinghaving any roof pitch from zero pitch (flat roof) to a 1:1 pitch (angleof 45 to the horizontal) and also for providing entrance of the lead-inwire or wires through the roof structure such that the entrance iswaterproof and leakproof and results in little or no diminution of thetelevision and/ or radio signal voltage on the lead-in wire or wires.

These objectives are attained by the device illustrated in theaccompanying drawings, in which Figure 1 is a profile view of thecombined antenna mast support and lead-in insulator device. This deviceconsists of the base plate 1, the cone 2, the hollow pipe 3 over whichand to which is secured the conically flared rain deflector 4 and insideof which is secured the diaphragm 5, which prevents water from flowingdown through the pipe 3 into the interior of the building. Water whichdoes enter the top open end of the pipe 3 drains out through the hole 9just above the diaphragm 5. Threaded holes receive machine screws 11which secure the antenna mast (dotted outline) in a vertical positioninside the pipe 3. The hole 6 receives the sphere 7 of insulatingmaterial through which the cylindrical hole 8 passes along the axis ofthe sphere 7. The base plate 1 and cone 2 (in bold outline) arepositioned for installation of the device on a flat roof with the baseplate oriented along the horizontal plane AA. The dotted outline of thebase plat-e 1 and cone 2 depict the device as oriented :for installationon a roof with a 1:1 pitch or 45 above the horizontal with the plane ofthe base plate 1 along the line B-B. In any position between AA and B-l3the base plate 1 of the device will be properly oriented forinstallation on a roof having that particular angular pitch. The raindeflector 4 always overlaps the top of the cone 2 sufiiciently toprovide a watershed thus preventing water from entering into the topopen end of the cone 2.

Figure 2 is a plan view of the device as installed on a flat roof,showing the manner of securing the antenna mast (dot-ted outline) invertical position by means of the screws 11.

Figure 3 is a vertical quarter-section view of the complete assemblyshowing the antenna mast (dotted outline) secured inside the open end ofthe pipe 3 by means of the screws '11 and showing the lower end of thepipe 3 passing through a hole in the roof sheathing and secured in avertical position by means of U-bolts to the rafters and otherstructural members of the roof frame work. The lead-in insulator sphere7 is inserted into the hole 6 in the cone 2 and oriented so that thelead-in wire passes up through the cylindrical hole 8 in the sphere 7 atan angle above the horizontal sufiicient to prevent the flow of rainwater into the interior of the cone 2. The sphere 7 is distorted from atrue spherical shape due to the fact that .the diameter of the hole 6 isless than the diameter of the sphere uncompressed so on the curved planeof intersection of the cone 2 and the sphere 7 the elastic material ofthe sphere exerts sufiicient pressure against the circumterence of thehole '6 to provide a watertight seal which prevents Water from enteringinto the interior of the cone 2. Although only one hole 6 is shown, inactual installation of multiple antennas more than one hole 6 could belocated on each opposite side of the cone 2, thus providing entrance forlead-in wires from several antennas.

During installation of the device the base plate 1 is integrated withthe shingles, tile or other roof materials to provide a watershed makingthe device leakproof.

What I claim is:

1. A roof-mounted antenna mast support and lead-in wire entranceinsulator device for the purpose specified having in combination ahollow upright pipe secured vertically to roof elements provided nearthe open top end with means of securing an antenna mast in a verticalposition inside the upright, provided with a conically shaped raindeflector attached coaxially by watertight means to the upright, andprovided internally with a watertight metal diaphragm opposite theconnection to the rain defiector with a drain hole through the wall ofthe upright pipe just above the diaphragm, a trustrum of a hollow metalcone open at its top and bottom ends and encircling the upright pipe, afiat metal base plate with a hole therein attached to and mating withthe lower open end of the cone and encircling the upright'pipe, a holethrough the sidewall of the cone which receives securely a universallyadjustable spherical insulator having axially located a cylindrical holethrough which lead-in wires enter into the interior of the cone and passdown through holes in the roof structure into the interior of thebuilding.

2. A roof-mounted antenna mast support .and lead-in Wire entranceinsulator device for the purpose specified having in combination atubular upright secured in vertical position to roof elements, aconically flared rain deflector attached coaxially and by Watertightmeans to the tubular upright near its upper end, a watertight diaphramsecured inside the upright opposite the point of attachment of theconical rain deflector to the upright, a drain hole through the wall ofthe tubular upright above the diaphragm, means of securing a tubularantenna mast inside the upper end of the upright above the diaphragm, afrustrurn of a hollow metal cone open at its top end and encircling thetubular upright, with its top end being overlapped sufficiently in anyangular position of orientation dependent upon the roof pitch by theconically flared skirt of the rain deflector to prevent water fromentering into the interior of the cone, and open at its bottom end andattached by Watertight means to a flat metal plate having a hole thereinmating with the open bottom end of the cone through which the tubularupright passes, the fiat metal plate being adjusted to rest upon and besupported by the roof sheathing, a hole in the sidewall of the conewhich receives securely a universally adjustable spherical insulatorhaving axially disposed a cylindrical hole through which lead-in wirespass into the interior of the cone and then through the roof sheathinginto the interior of the building.

References Cited in the file of this patent UNITED STATES PATENTS684,736 Wurts Oct. 15, 1901 979,840 Goddard Dec. 27, 1910 1,102,413Jensen July 7, 1914 FOREIGN PATENTS 54,165 France Dec. 17, 1947

